Schwarzkopf Professional Hair Primer Porosity Equalizer balances out structural differences from roots to ends to create uniform and even color results for all color services, while helping to neutralize metal ions. For professional use only. How to Use: Shake well before use and spray onto porous hair sections, allow to dry or blow-dry if needed and then apply hair color as usual.

• Equalisation of different porosity levels
• Helps to neutralise metal ions
• Allows even colour results from roots to tips